Ergonomic and functionally-efficient race-track button arrangement circumferentially coupled to a display device



FIG. 1 is a top perspective view of an ergonomic and functionally-efficient race-track button arrangement circumferentially coupled to a display device, in accordance with the present invention;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is an underside view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a is a side view thereof; and,

FIG. 8 is a corresponding side view thereof.

The broken lines are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for an ergonomic and functionally-efficient race-track button arrangement circumferentially coupled to a display device, as shown and described. 